The concept of the 'Anthropocene' has gained significant traction in geological and environmental circles, though its formal recognition as a new geological epoch remains contentious. Proponents argue that human activities, particularly since the mid-20th century, have left indelible markers in the stratigraphic record, such as radioactive isotopes from nuclear tests, microplastics, and elevated carbon dioxide levels. These markers, they contend, justify a distinct epoch following the Holocene. However, skeptics within the geological community question whether the Anthropocene meets the strict criteria for an epoch, which typically require a clear, globally synchronous boundary in rock strata. They also warn that formalizing the Anthropocene could oversimplify the complex, diachronous nature of human impacts across different regions, potentially undermining the precision of geological time scales. This debate highlights the tension between scientific classification and the broader societal implications of acknowledging humanity's profound influence on Earth's systems.
❓ Según el pasaje, ¿cuál es una razón principal por la que algunos geólogos se oponen a reconocer formalmente el Antropoceno como una nueva época?
A. A. Los marcadores de impacto humano no son lo suficientemente distintos de los procesos naturales.
B. B. El límite propuesto puede no ser globalmente sincrónico y podría simplificar en exceso las variaciones regionales.
C. C. Los isótopos radiactivos y los microplásticos son demasiado recientes para ser considerados marcadores geológicos.
D. D. El concepto ha recibido demasiada atención fuera de los círculos geológicos.
✅ 正确答案
B. The proposed boundary may not be globally synchronous and could oversimplify regional variations.
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